Threshing-machine.



T. PONIUE & '1. STASKA. I 'i'HRESHIlMGNIACHIYNIE. APPLICATION man Aue.2|. 1914.

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THEGEIL PMIJE, QF LESUEUR CENTER, AND JOSEPH STASKA, F MONTGQMERY,MINNESOTA.

THRESHNG-MACHINE.

Specification of Letters Patent.

Patented Apr. 13, 1915.

Application lcd August 21, 1914. Serial No. 857,844.

lle it known that we, VJli-rnorin POMME and Josrri-r S'rixsim, citizensof the United States, residing at Lesueur Center and lldontgomery,respectively, in the county of liesueur and State of Minnesota, haveinvented certain new and useful improve ments in rlfhreshing-lidachines;and we do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

Our invention relates to threshing machines, and has for its object toprovide devices for thoroughly beating or shaking the grain left in thestraw after having passed between the threshing cylinder and concave andwhile the straw is passing over the straw racks, thus reducing to aminimum the amount of grain carried with the straw into the stack.

To the above end, generally stated, the invention consists of the noveldevices and combinations of devices hereinafter described and defined inthe claims.

lin the accompanying drawings, which illustrate the invention, likecharacters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a fragmentary view, in sideelevation, of a threshing machine having incorporated therein ourinvention; Fig. 2 is a longitudinal section, taken centrally through theparts shown in Fig. 1; Fig. 3 is a view, partly in plan and partly inhorizontal section, taken in the vicinity of the line m3 m3 of Fig. 2;and Fig. i is a detail view, on an enlarged scale, of one of thebeaters, some parts being broken away.

Of the parts of the threshing machine illustrated it is only necessaryto note the machine case l, front, intermediate and rear vibratory strawracks 2, 3 and 4, respectively, grain pan 5 and fan 6. rlhe straw racksare of well-known construction, comprising laterally spaced feed bars,having serrated or fish-back working edges, and means for vibrating thesame.

ln the threshing machine illustrated, the bea-ters, as shown, three innumber, are set one in advance of the other and located directly abovethe intermediate straw rack 3, in a plane parallel to and intermediatebetween said front and intermediate straw racks. l Each of these beaterscomprises a horizontal shaft 7 extended transversely of the machine, apair of heads S, and a pair of bars 9. rllie shaft 7 is journaled inbearings 10 secured to the side walls of the machine case 1. rlhe headsS are intermediately bored to receive the shaft 7 and are secured forrotation therewith by keys 11. The bars 9 are, as shown, preferably inthe form of round rods located diametrically op posits one another andhaving their end portions bent laterally inward and anchored in theheads 8. To secure the bars 9 to the heads 8 said heads may be castaround the ends of said rods or secured thereto in any other suitableway. Gbviously, a beater constructed as described is a flat, openstructure through which the loose grain may drop. By making the rods 9round the same are less liable to strike and throw the grain.

llhe three beaters are arranged to deliver one to the other and are setfor rotation on their own aXes progressively one ahead of the other, or,in other words, 120 degrees apart. The following connections areprovided for rotating the beaters in the same direction, and for keepingthe said beaters in the same relative, angular positions in which theywere originally set, to-wit: Keyed to the outer projecting end of theintermediate beater is a relatively large pulley 12, alined with arelatively small pulley 13 on the shaft of the fans 6, and over whichpulleys runs a belt 14. Also keyed to the shaft of the intermediatebeater between the case 1 and pulley 12 is a pair of sprocket wheels 15,one of which is alined with a sprocket wheel 16, on the front beater,and the other of which is alined with a sprocket wheel 17, on the rearbeater. A sprocket chain 18 runs over the sprocket wheel 16 and alinedsprocket wheel 15, and a second sprocket chain 19 runs over the sprocketwheel 17 and alined sprocket wheel 15. rThese connections are arrangedto rotate said beaters in the direction of the arrows marked on Fig. 2.

When the machine is in action, the straw is delivered from the frontrack 2 onto the front beater. This beater tosses the straw into the airand onto the intermediate beater, from which it is again tossed into theair and onto the rear beater. F rom the rear beater the straw is againtossed into the air and onto the intermediate straw rack 3. ln

setting the beaters in different angular positions, one ahead of theother, the straw is passed from one to the other in a wave-like course,as indicated by dotted lines in Fig. 2. While the straw is beingrepeatedly tossed into the air by the beaters, the loose grain heldtherein, being heavier than the straw, will be more quicklyprecipitated, dropping through or between the beaters before said graincan be again caught in the body of the straw. The straw cannot passbetween or through the beaters, but will be repeatedly tossed upwardthereby and thoroughly agitated to remove the loose grain therefrom, andevenly spread out over the full length of the beaters, and deliveredthereby onto the rear straw rack. It is, of course, understood that oneor more oit these beaters may be used in a machine, and their relativepositions with respect to the straw racks may be varied, depending onthe construction of the machine to which they are applied.

The above described device has been thoroughly tested in actual usage,and in a fullsized machine, proving highly efficient for the purpose hadin view.

What we claim is:

1. In a threshing machine, the combination with vibratory straw racks,adapted to deliver one to the other, of a plurality of flat, rotarybeaters, arranged for action on the straw at a point where it passesfrom one straw rack to the other, said beaters being arranged to deliverone to the other and set for rotation on their own axes progressivelyone ahead of the other, whereby the straw is carried on said beaters,from one of said racks to the other, in a wave-like course.

2. In a threshing machine, the combination with vibratory straw racks,adapted to deliver one to the other, of a plurality of flat, rotarybeaters, arranged for action on the straw at a point where it passesfrom one straw rack to the other, said beaters bel ing arranged todeliver one to the other, and set for rotation on their own axesprogressively one ahead of the other, whereby the straw is carried onsaid beaters, from one oi said racks to the other, in a wave-like courseand means for rotating said beaters, whereby, under their rotary speed,they are kept in the same relative angular positions in which they wereinitially set.

In testimony whereof we aiix our signatures in presence of twowitnesses.

THEOFIL POMIJE. JOSEPH STASKA.

Witnesses:

J. H. KArsUsATT, J. H. SMULAN.

C'opies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

CIT

